CN114019435A - Motor magnet steel polarity detection device - Google Patents
Motor magnet steel polarity detection device Download PDFInfo
- Publication number
- CN114019435A CN114019435A CN202111407787.XA CN202111407787A CN114019435A CN 114019435 A CN114019435 A CN 114019435A CN 202111407787 A CN202111407787 A CN 202111407787A CN 114019435 A CN114019435 A CN 114019435A
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- China
- Prior art keywords
- magnetic pole
- detection device
- polarity detection
- chuck
- linkage
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 title claims abstract description 35
- 239000010959 steel Substances 0.000 title claims abstract description 35
- 238000009434 installation Methods 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 208000003464 asthenopia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
Abstract
The invention provides a motor magnetic steel polarity detection device, which comprises a workpiece placing table; the workpiece placing table is installed on the linkage chuck, and a plurality of magnetic pole sensors are uniformly distributed on the periphery of the workpiece placing table. The invention can obviously improve the detection efficiency based on the way of synchronously detecting the multiple magnetic steels in the circumferential surrounding distribution of the magnetic pole sensors; and the synchronous adjustment of the radial dimension of the sensor is realized by adopting the linkage chuck, so that the requirement of high compatibility of products can be effectively met.
Description
Technical Field
The invention relates to a motor magnetic steel polarity detection device.
Background
In various fields relating to electromechanical structures and control, motors are gradually becoming industrialized as important parts. In the process of considering that different types of motor products are continuously optimized and gradually mature in structure and performance design, the flexible production requirements of multiple types and small batches are effectively met, so that the motor is compatible with products of multiple structures as far as possible, the processing cost is reduced, and the production efficiency is improved.
Most motor manufacturing enterprises in the present stage generally carry out single-point detection by manually holding a polarity pen when detecting the polarity of magnetic steel, and the detection mode has the following two problems: 1. each product needs to be detected by the polarity pen for many times, and the condition of missing detection is easy to occur, so that the detection efficiency is not high; 2. too much repetitive work of manual detection can cause eye fatigue and error easily.
Disclosure of Invention
In order to solve the technical problem, the invention provides a motor magnetic steel polarity detection device which can obviously improve the detection efficiency based on a mode of synchronously detecting a plurality of magnetic steels in a circumferential surrounding type distribution of magnetic pole sensors.
The invention is realized by the following technical scheme.
The invention provides a motor magnetic steel polarity detection device, which comprises a workpiece placing table; the workpiece placing table is installed on the linkage chuck, and a plurality of magnetic pole sensors are uniformly distributed on the periphery of the workpiece placing table.
The magnetic pole sensors are arranged on the same plane.
The detection ends of the magnetic pole sensors are positioned on the same plane.
The axial lead direction of the workpiece placing table is taken as an axial direction, and the plurality of magnetic pole sensors are installed in the axial direction or the radial direction.
The number of the magnetic pole sensors is consistent with that of the clamping jaws on the linkage chuck.
The linkage chuck is a linkage four-jaw chuck.
The magnetic pole sensor is installed on the installation seat, and the installation seat is fixed on the linkage chuck.
The linkage chuck upper cover is equipped with the safety cover, and the safety cover covers linkage chuck, magnetic pole sensor and mount pad completely.
The invention has the beneficial effects that: the detection efficiency can be obviously improved based on the mode of synchronously detecting the multiple magnetic steels in a circumferential surrounding type distribution of the magnetic pole sensors; and the synchronous adjustment of the radial dimension of the sensor is realized by adopting the linkage chuck, so that the requirement of high compatibility of products can be effectively met.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another embodiment of the present invention;
FIG. 3 is a schematic structural view of the interlocking chuck of the present invention;
FIG. 4 is a schematic structural view of the mount of FIG. 1;
FIG. 5 shows a structure of a stator holder for a brush motor of a certain type;
FIG. 6 is a schematic structural view of the mount of FIG. 2;
FIG. 7 shows a structure of a placing table for a brushless motor rotor of a certain type;
in the figure: 1-a workpiece placing table, 2-a magnetic pole sensor, 3-a protective cover, 4-a mounting seat and 5-a linkage chuck.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
Example 1
The polarity detection device for the motor magnetic steel shown in fig. 1 to 3 comprises a workpiece placing table 1; the workpiece placing table 1 is installed on a linkage chuck 5, and a plurality of magnetic pole sensors 2 are uniformly distributed on the periphery of the workpiece placing table 1.
Example 2
In embodiment 1, the plurality of magnetic pole sensors 2 are mounted on the same plane.
Example 3
According to embodiment 1, the detection ends of the plurality of magnetic pole sensors 2 are located on the same plane.
Example 4
In embodiment 1, as shown in fig. 1, the plurality of magnetic pole sensors 2 are mounted in the axial direction with the axial center line direction of the work placing table 1 as the axial direction.
Example 5
In embodiment 1, as shown in fig. 2, the plurality of magnetic pole sensors 2 are mounted in the radial direction with the axial direction of the work placing table 1 as the axial direction.
Example 6
Based on embodiment 1, the number of the magnetic pole sensors 2 is the same as the number of the jaws on the interlocking chuck 5.
Example 7
In embodiment 1, the interlocking chuck 5 is an interlocking four-jaw chuck.
Example 8
According to embodiment 1, the magnetic pole sensor 2 is mounted on the mount 4, and the mount 4 is fixed to the interlocking chuck 5.
Example 9
In embodiment 1, the protective cover 3 completely covers the interlocking chuck 5, the magnetic pole sensor 2, and the mount 4.
Example 10
Based on the above embodiment, the realization principle is that the magnetic pole sensor circumference surrounding type distribution synchronous detection multi-magnetic steel is taken as the core thinking, the linkage chuck is adopted as the basic structure for realizing the synchronous adjustment of the radial dimension of the sensor, the stator and the rotor are provided with different sensor installation tools, the tool is placed according to the different structural design of different products, the rapid positioning and the rapid model changing are realized by replacing the tool, and the magnetic steel polarity detection result is displayed on the case display screen and the indicating lamp.
There is brush motor stator magnet steel all to bond in stator inner wall, uses the magnet to be magnet steel intrados magnetic pole, and this makes stator inner space limited, consequently can encircle the magnetic pole sensor for stator axial and place, can realize the polarity detection to stator magnet steel near magnet steel cross-section inboard with sensor response tip.
For the installation mode of the magnetic pole sensor, in view of the fact that the sensor is axially placed under the condition of verifying the sub-magnetic poles and in view of the structure of the installation part of the end part of the clamping jaw of the linkage chuck, the tool shown in the figures 1, 3 and 4 is designed to realize the sensor installation tool for detecting the magnetic poles of the stator of the brush motor. The installation tool bottom is matched with the clamping jaw end structure and is installed in an interference fit mode, a through hole is designed in the end portion of the installation tool according to the diameter size of the magnetic pole sensor, the sensor induction end portion penetrates through the through hole upwards, and the sensor induction end portion is fixed through an upper tightening nut and a lower tightening nut.
4 magnet steel products are the most common condition, so use 4 magnet steel products as an example, install magnetic pole sensor to linkage four-jaw chuck clamping jaw on through above mode, utilize the tensioning size that T shape spanner can the synchronous adjustment clamping jaw to the not unidimensional stator product of adaptation.
As radial dimension synchronous control's foundation structure, linkage chuck self material is mostly 45# steel, belongs to the magnetic material, and this makes the stator that accomplishes the magnet steel bonding can have the risk of colliding with because of magnetism leads to when carrying out the magnetic pole on the chuck, causes the stator outward appearance impaired easily, and then leads to the product unqualified, consequently, sets up three-dimensional safety cover in linkage chuck outside and does necessary. Based on the structure of the linkage four-jaw chuck,four square grooves uniformly distributed on the side surface of the protective cover are used as guide grooves of the chuck clamping jawAnd can also play a role in positioning,the top of the protective cover is provided with a flat round holeThe milling flat structure is used for providing a direction positioning reference for the placing tool.
The stator placing tool is a tool for placing stator products in the magnetic pole detection process as the name implies. In order to obtain the positioning reference quickly, the stator can be placed by utilizing the concave circular truncated cone, and the shape, the size and the positioning mode of the concave circular truncated cone are determined according to the end surface structure of the stator. The bottom circular truncated cone milling structure is used for being matched with the opening hole in the top of the protective cover to uniformly detect the reference direction. Fig. 5 shows a stator placing table structure of a brush motor of a certain model.
Example 11
Based on above-mentioned embodiment, brushless rotor motor magnet steel all bonds in rotor shaft surface, uses the magnetic pole to be extrados magnetic pole, can place magnetic pole sensor for rotor shaft radial encirclement, extends the radial magnet steel extrados that is close to with sensor response tip and can realize detecting the polarity of rotor magnet steel, as shown in fig. 2.
Similar to the stator magnetic pole detection, a magnetic pole sensor installation tool needs to be designed according to the structural size of the end part of a clamping jaw of the linkage chuck, and the installation direction of the magnetic pole sensor is radial when a rotor is detected, so that the installation tool shown in figure 6 is designed, a through hole is formed in the vertical surface of the tool according to the diameter size of a screw rod of the magnetic pole sensor, a hexagonal groove is formed in the outer side of the vertical surface of the tool and used for embedding a locking nut of the magnetic pole sensor, and the magnetic pole sensor is fixed through a tightening nut arranged in the inner side and the outer side of the vertical surface of the tool. A key groove is formed in the top of the inner side of the installation tool for fixing the magnetic pole direction, so that a fixed magnetic pole direction positioning reference is provided.
In order to avoid the problem that the rotor collides with the linkage chuck due to magnetic force adsorption, a three-dimensional protective cover needs to be designed by combining a tool structure for rotor magnetic pole detection.
The rotor placing tool is in a T-shaped cylindrical shape as shown in figure 7, square holes are uniformly distributed on the cylinder body according to the quantity of the product magnetic steel and used for providing a detection space for the magnetic pole sensor, and the hole diameter of the inner hole of the cylinder is matched with the outer diameter of the rotor magnetic steel. The bottom of the cylinder is provided with a through hole for limiting the shaft end of the rotor, and the structure of the through hole is determined according to the structure size of the limiting end of the rotor. The diameter of the cylinder cap at the top of the cylinder is larger than that of the cylinder body, and a flat key structure is designed in the direction of a fixed magnetic pole at the bottom of the cylinder cap and is matched with a key groove of a sensor installation tool, so that the reference of the polarity direction is unified.
In conclusion, the invention replaces the manual single-point detection by adopting the way of synchronously detecting the multiple magnetic steels in the circumferential surrounding distribution of the magnetic pole sensors, thereby obviously improving the detection efficiency; and the linkage chuck is adopted to realize the synchronous adjustment of the radial dimension of the magnetic pole sensor, and the requirement of high compatibility of products is effectively met.
Claims (8)
1. The utility model provides a motor magnet steel polarity detection device, places platform (1) including the work piece, its characterized in that: the workpiece placing table (1) is installed on the linkage chuck (5), and a plurality of magnetic pole sensors (2) are uniformly distributed on the periphery of the workpiece placing table (1).
2. The motor magnetic steel polarity detection device of claim 1, wherein: the magnetic pole sensors (2) are arranged on the same plane.
3. The motor magnetic steel polarity detection device of claim 1, wherein: the detection ends of the magnetic pole sensors (2) are positioned on the same plane.
4. The motor magnetic steel polarity detection device of claim 1, wherein: the axial lead direction of the workpiece placing table (1) is taken as an axial direction, and the plurality of magnetic pole sensors (2) are installed in the axial direction or the radial direction.
5. The motor magnetic steel polarity detection device of claim 1, wherein: the number of the magnetic pole sensors (2) is consistent with the number of the clamping jaws on the linkage chuck (5).
6. The motor magnetic steel polarity detection device of claim 1, wherein: the linkage chuck (5) is a linkage four-jaw chuck.
7. The motor magnetic steel polarity detection device of claim 1, wherein: the magnetic pole sensor (2) is installed on the installation seat (4), and the installation seat (4) is fixed on the linkage chuck (5).
8. The motor magnetic steel polarity detection device of claim 1, wherein: the linkage chuck (5) is covered with the protective cover (3), and the linkage chuck (5), the magnetic pole sensor (2) and the mounting seat (4) are completely covered by the protective cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111407787.XA CN114019435A (en) | 2021-11-24 | 2021-11-24 | Motor magnet steel polarity detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111407787.XA CN114019435A (en) | 2021-11-24 | 2021-11-24 | Motor magnet steel polarity detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114019435A true CN114019435A (en) | 2022-02-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111407787.XA Pending CN114019435A (en) | 2021-11-24 | 2021-11-24 | Motor magnet steel polarity detection device |
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| Country | Link |
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| CN (1) | CN114019435A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202872710U (en) * | 2012-12-20 | 2013-04-10 | 北京友信宏科电子科技有限公司 | AC brushless permanent-magnet synchronous-motor rotor-position detection device |
| CN204597738U (en) * | 2015-03-13 | 2015-08-26 | 中国人民解放军总后勤部建筑工程研究所 | Axially to magnetic rare earth permanent-magnetic generator |
| CN106772154A (en) * | 2016-12-19 | 2017-05-31 | 旭利无锡电气技术有限公司 | Permanent-magnetic synchronous motor rotor Check up polarity equipment |
| CN207281265U (en) * | 2017-09-11 | 2018-04-27 | 宁波菲仕工业设计有限公司 | A kind of permanent magnet machine rotor Check up polarity cubing |
| CN110149016A (en) * | 2019-06-28 | 2019-08-20 | 泉州装备制造研究所 | Novel position-sensor-free permanent magnet synchronous motor and rotor-position judgment method |
| CN209642415U (en) * | 2019-03-26 | 2019-11-15 | 合肥巨一动力系统有限公司 | A kind of device for permanent-magnetic electric machine rotor magnet steel installation |
| CN110850290A (en) * | 2019-12-10 | 2020-02-28 | 西安航天精密机电研究所 | Stator armature polarity detection device |
-
2021
- 2021-11-24 CN CN202111407787.XA patent/CN114019435A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202872710U (en) * | 2012-12-20 | 2013-04-10 | 北京友信宏科电子科技有限公司 | AC brushless permanent-magnet synchronous-motor rotor-position detection device |
| CN204597738U (en) * | 2015-03-13 | 2015-08-26 | 中国人民解放军总后勤部建筑工程研究所 | Axially to magnetic rare earth permanent-magnetic generator |
| CN106772154A (en) * | 2016-12-19 | 2017-05-31 | 旭利无锡电气技术有限公司 | Permanent-magnetic synchronous motor rotor Check up polarity equipment |
| CN207281265U (en) * | 2017-09-11 | 2018-04-27 | 宁波菲仕工业设计有限公司 | A kind of permanent magnet machine rotor Check up polarity cubing |
| CN209642415U (en) * | 2019-03-26 | 2019-11-15 | 合肥巨一动力系统有限公司 | A kind of device for permanent-magnetic electric machine rotor magnet steel installation |
| CN110149016A (en) * | 2019-06-28 | 2019-08-20 | 泉州装备制造研究所 | Novel position-sensor-free permanent magnet synchronous motor and rotor-position judgment method |
| CN110850290A (en) * | 2019-12-10 | 2020-02-28 | 西安航天精密机电研究所 | Stator armature polarity detection device |
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